C

n=sqrt(2.73281949-0.0114137973*pow(x,2)+0.0202755954*pow(x,-2)-0.000478308953*pow(x,-4)+0.000110158258*pow(x,-6)-5.30283301e-06*pow(x,-8))

Python

n=(2.73281949-0.0114137973*x**2+0.0202755954*x**-2-0.000478308953*x**-4+0.000110158258*x**-6-5.30283301e-06*x**-8)**.5

Fortran

n=SQRT(2.73281949-0.0114137973*x**2+0.0202755954*x**-2-0.000478308953*x**-4+0.000110158258*x**-6-5.30283301e-06*x**-8)

MATLAB

n=sqrt(2.73281949-0.0114137973.*x.^2+0.0202755954.*x.^-2-0.000478308953.*x.^-4+0.000110158258.*x.^-6-5.30283301e-06.*x.^-8)

LaTeX

n^2=2.73281949-0.0114137973λ^{2}+0.0202755954λ^{-2}-0.000478308953λ^{-4}+0.000110158258λ^{-6}-5.30283301\text{×}10^{-06}λ^{-8}